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29,758 Article Results

Implementation of E-Voting System for Student Union Government Elections

10.12928/telkomnika.v16i5.9739
Aderibigbe I.; Covenant University Adekitan , Victor O.; Covenant University Matthews , Temitope M.; Covenant University John , Stanley; Covenant Univeristy Uzairue
Several records of violence during student body elections in higher institutions of learning can be found dating back to the 1988 Abu crisis. The causal factors are multifaceted, involving both internal factors within the institution and external factors, and interest parties like main stream politicians. Suspicion of the possibility of rigging during a planned election can trigger pre-election violence, while alleged rigging during the election or the vote counting process is the major cause of election unrest during student government elections. The voting process is typically manual, and it is done through the use of ballot boxes and papers. This is error prone, inefficient and susceptible to rigging. Preventing mistrust-induced election violence requires the deployment of a trustworthy alternative to the paper ballot system. In this study, an electronic voting system is developed using Visual Basic and Microsoft Access Database. The application performs voter authentication by verifying a pre-issued pin which is unique for each voter. The system is accurate and engages the participation and login of agents who are representatives of the candidates’ contesting for various offices thereby building trust in the process.
Volume: 16
Issue: 5
Page: 2155-2164
Publish at: 2018-10-01

Impact of Combine Dithering and Modulators to Mitigate Noise in Radio Over Fiber System

10.11591/ijeecs.v12.i1.pp428-432
Fakhriy Hario , Eka Maulana , Hadi Suyono , Rini N Hasanah , Sholeh H Pramono
A well-prepared Radio over Fiber (RoF) is a technology that combines two transmission technologies, radio and optical fiber transmissions. The study focused on the characteristics and problems of the optical fiber medium. One of the problems in the optical fiber is the effect of nonlinear characteristic, which caused by the high light intensity in the optical fiber core with extended interaction area in a single mode fiber (SMF). This characteristic reduces the output width and creates a pulse broadening. The nonlinear characteristics discussed in this study focused on SPM (self-phase modulation) and GVD (Group Velocity Dispersion). To overcome the nonlinear problems, this study presented a method to make the noise-resistant transmitted signal and improve the optical fiber power range. The fundamental of this study was developing similarities of previous studies regarding nonlinearity in the optical fiber. The results show that the use of two modulators combined with the amplification generated the signal with smoother spectrum, which means that the spectrum distribution was more uniform. There was 61.5 % increase of the peak power of the output signal after amplification using an optical amplifier.
Volume: 12
Issue: 1
Page: 428-432
Publish at: 2018-10-01

Effort Estimation Development Model for Web-Based Mobile Application Using Fuzzy Logic

10.12928/telkomnika.v16i5.6561
Stefani; Bina Nusantara University Agusta , Suharjito; Bina Nusantara University Suharjito , Abba Suganda; Bina Nusantara University Girsang
Effort estimation becomes a crucial part in software development process because false effort estimation result can lead to delayed project and affect the successful of a project. This research proposes a model of effort estimation for web-based mobile application developed using object oriented approach. In the proposed model, functional size measurement of object oriented based web application named OOmFPWeb, web metric and mobile characteristic for web-based mobile application size measurement are combnined. The estimation process is done by using mamdani fuzzy logic method. To evaluate the proposed model, the comparison between OOmFPWeb as the variable that affect effort estimation for web-based mobile application and the proposed model are performed. The evaluation result shows that effort estimation for web-based mobile application with the proposed model is better than just using OOmFPWeb.
Volume: 16
Issue: 5
Page: 2082-2090
Publish at: 2018-10-01

IT Service Management System Measurement using ISO20000-1 and ISO15504-8: Developing a Solution-Mediated Process Assessment Tool to Enable Transparent and SMS Process Assessment

10.11591/ijece.v8i5.pp4023-4032
Imam Asrowardi , Septafiansyah Dwi Putra , Eko Subyantoro , Norzaidi Haji Mohd Daud
Information technology is about not only hardware, software, communication infrastructure and communication infrastructure but also how to manage services. Information technology plays an increasingly important role in developing the structure and functions of public and private sectors. Service measurement plays an important role in IT service management (ITSM) that is one of the subfields of Services Computing science. ITSM is a big part of service science, a science field that combines computer science, operation research engineering, business strategy, management science, and organizational theory. Performance measurement from each of IT services is absolutely needed and is important in the continuous development of ITSM. These research provide good technical knowledge about the measuring ITSM with some requirements. In this paper we suggest the metrics in each service processes enables organizations to predict a direction for active process enhancement and to identify if the goal of process can achieve. This objective process metrics based on ISO/IEC 15504-8 and PRM ISO/IEC 20000-4 refinement. The output of this research, in the form of metrics and tools for any type organizational use.
Volume: 8
Issue: 5
Page: 4023-4032
Publish at: 2018-10-01

E-dopt: A Mobile Application for Pet Adoption in Indonesia

10.12928/telkomnika.v16i5.8074
Santy; Bina Nusantara University Santy , Ryan; Bina Nusantara University Karuna , Alvin; Bina Nusantara University Budiman
In this research, we discuss the current trend on pet adoption in Indonesia and introduce a mobile application called e-dopt to encourage more pet adoption in Indonesia. Pet adoption mobile application is not yet popular in Indonesia, thus the benefit of conducting this research. Within this research, a mobile application to help the pet adoption process has been developed. The mobile application is developed on Android platform and the requirements are gathered by interviews, surveys, and research that have been conducted. The mobile application developed provides convenience for those who wants to adopt or give out pets and also allows businesses in pet product industry to use the mobile application as a sales channel.
Volume: 16
Issue: 5
Page: 2137-2143
Publish at: 2018-10-01

Temperature Monitoring and Forecast System in Remote Areas with 4.0G LTE Mobile Technologies

10.12928/telkomnika.v16i5.10246
Kevin Alexandre; Universidad Nacional de Colombia Riaño Vargas , Octavio José; Universiad Nacional de Colombia Salcedo Parra , Miguel J.; Universidad Distrital “Francisco José de Cáldas” Espitia R.
The need to monitor areas of high risk in terms of temperature indexes has included two important elements for its compliance: monitoring and forecast of records in an environment. Performing this procedure manually is inefficient as it provides a flat perspective and can’t predict the state of the environment with rigor. Software systems are contemporary elements in constant refinement, which satisfy emerging needs of a context, so that, in relation to monitoring and forecast an environment, it allows a sophisticated automation of the process, and that tends to lead to a better supervision of the risks in the environment. This article presents a proposal for the supervision of high-risk areas, through temperature registers, manageable through the design of a software system with the implementation of mobile 4.0G LTE technologies, aimed at efficiency and effectiveness in the notification of environmental status. Finally, I conclude with a remote temperature monitoring and forecast system, using mobile technologies, with a fuzzy logic prediction system with a quadratic error not greater than 2.6%, that is, on a fuzzy algebra system whose Numerical calculation does not exceed this error value in comparison with actual values; At the same time that the future works are presented from the approach of the research that is postulated, according to the emergence of new perspectives related to this developing software system.
Volume: 16
Issue: 5
Page: 1988-2004
Publish at: 2018-10-01

Performance Enhancement of MIMO-OFDM using Redundant Residue Number System

10.11591/ijece.v8i5.pp3902-3912
M. I. Youssef , A. E. Emam , M. Abd Elghany
Telecommunication industry requires high capacity networks with high data rates which are achieved through utilization of Multiple-Input-Multiple-Output (MIMO) communication along with Orthogonal Frequency Division Multiplexing (OFDM) system. Still, the communication channel suffers from noise, interference or distortion due to hardware design limitations, and channel environment, and to combat these challenges, and achieve enhanced performance; various error control techniques are implemented to enable the receiver to detect any possible received errors and correct it and thus; for a certain transmitted signal power the system would have lower Bit Error Rate (BER). The provided research focuses on Redundant Residue Number System (RRNS) coding as a Forward Error Correction (FEC) scheme that improves the performance of MIMO-OFDM based wireless communications in comparison with current methods as Low-Density Parity Check (LDPC) coders at the transmitter side or equalizers at receiver side. The Bit Error Rate (BER) performance over the system was measured using MATLAB tool for different simulated channel conditions, including the effect of signal amplitude reduction and multipath delay spreading. Simulation results had shown that RRNS coding scheme provides an enhancement in system performance over conventional error detection and correction coding schemes by utilizing the distinct features of Residue Number System (RNS).
Volume: 8
Issue: 5
Page: 3902-3912
Publish at: 2018-10-01

Vibration-Based Damaged Road Classification Using Artificial Neural Network

10.12928/telkomnika.v16i5.7574
Yudy; Bina Nusantara University Purnama , Fergyanto E.; Bina Nusantara University Gunawan
It is necessary to develop an automated method to detect damaged road because manually monitoring the road condition is not practical. Many previous studies had demonstrated that the vibration-based technique has potential to detect damages on roads. This research explores the potential use of Artificial Neural Network (ANN) for detecting road anomalies based on vehicle accelerometer data. The vehicle is equipped with a smart-phone that has a 3D accelerometer and geo-location sensors. Then, the vehicle is used to scan road network having several road anomalies, such as, potholes, speedbump, and expansion joints. An ANN model consisting of three layers is developed to classify the road anomalies. The first layer is the input layer containing six neurons. The numbers of neurons in the hidden layer is varied between one and ten neurons, and its optimal number is sought numerically. The prediction accuracy of 84.9% is obtained by using three neurons in conjunction with the maximum acceleration data in x, y, and z-axis. The accuracy increases slightly to 86.5%, 85.2%, and 85.9% when the dominant frequencies in x, y, and z-axis, respectively, are taken into account beside the previous data.
Volume: 16
Issue: 5
Page: 2179-2190
Publish at: 2018-10-01

Land Use Growth Simulation and Optimization for Achieving a Sustainable Urban Form

10.12928/telkomnika.v16i5.9309
RahmadyaTrias; Universitas Islam 45 Bekasi Handayanto , Nitin Kumar; Asian Institute of Technology Thailand Tripathi , Sohee Minsun; Asian Institute of Technology Thailand Kim , Herlawati; STMIK Bina Insani Herlawati
Urban areas have been perceived as the source of environmental problems. To avoid improper land use allocation, negative sprawl effects, and other sources of environmental degradation, city planners need tools for simulating and optimizing their proposed plans. This study proposed a “what-if” analysis model that could help the planners in assessing and simulating their urban plans in Bekasi City, Indonesia. As part of Jakarta Metropolitan Area which exhibited a “post-suburbanization” phenomenon, this city faces many problems because of its high urban growth. Since the urban area has higher land use density than the rural area, especially on built-up class, it needs more consideration when allocating this kind of land use. Because each type of built-up class influences another type, it is difficult to allocate manually. Therefore, this study proposed a land-use optimization application to help planners finding the appropriate land use. This study showed that a model with simulation and optimization can be used to handle urban growth.
Volume: 16
Issue: 5
Page: 2063-2072
Publish at: 2018-10-01

An Effectively Modified Firefly Algorithm for Economic Load Dispatch Problem

10.12928/telkomnika.v16i5.10545
Nguyen Trung; Ton Duc Thang university Thang , Nguyen Duy; Ho Chi Minh City Phuong , Pham Van; Technical University of Ostrava Thanh , Chiem Trong; Ho Chi Minh City Hien
This paper proposes an effectively modified firefly algorithm (EMFA) for searching optimal solution of economic load dispatch (ELD) problem. The proposed method is developed by improving the procedure of new solution generation of conventional firefly algorithm (FA). The performance of EMFA is compared to FA variants and other existing methods by testing on four different systems with different types of objective function and constraints. The comparison indicates that the proposed method can reach better optimal solutions than other FA variants and most other existing methods with lower population and lower maximum iteration. As a result, it can lead to a conclusion that the proposed method is potential for ELD problem.
Volume: 16
Issue: 5
Page: 2436-2443
Publish at: 2018-10-01

Preventing Denial-of-service in Next Generation Internet Protocol Mobility

10.11591/ijeecs.v12.i1.pp137-146
Maanasaa Sethuraman , Senthilkumar Mathi
Internet Protocol version 6 (IPv6) is a next-generation internet protocol that is devised to replace its predecessor, the IPv4. With the benefit of ample address space, flexible header extensions and its many specific features, IPv6 is the future of the Internet and Internetworking. A significant advantage of IPv6 is its capabilities in the domain of security and mobility, where it scores in comparison with its predecessor. One of the many features specific to IPv6, such as the mandatory IPsec messaging or address auto-configuration, is the Neighbor Discovery Protocol (NDP). Even though the concept of security is more pronounced in the IPv6 protocols, there still exist loopholes. These loopholes when exploited target the foundation of the Internetworking. The extensive applications of NDP make it even more necessary to identify and address these gaps to ensure network security. Hence, this paper investigates such loopholes in the applications of NDP in creating a network and analyzes the process of the denial-of-service attacks that endanger the safety of an established network. Also, the paper proposes a new method to mitigate Denial-of-Service (DoS) in network mobility of IPv6 networks. This proposed approach is a hybrid of existing solutions and is capable of overcoming the significant disadvantages of these methods. Also, the paper discusses the comparative analysis among the various existing solutions and illustrates the effect of the proposed method in MIPv6 security.
Volume: 12
Issue: 1
Page: 137-146
Publish at: 2018-10-01

Comparative Analysis for Topic Classification in Juz Al-Baqarah

10.11591/ijeecs.v12.i1.pp406-411
Mohamad Izzuddin Rahman , Noor Azah Samsudin , Aida Mustapha , Adeleke Abdullahi
In Islam, Quran is the holy book that was revealed to the Prophet Muhammad. It functions as complete code of life for the Muslims. Remarks from Allah which contains more than 77,000 words that was passed down through Prophet Muhammad to the mankind for 23 years started in 610 ce. The Quran was divided into 114 chapters.  Arabic language is the original text. The need for the Muslims across the world to find the meaning to understand the content in the Quran is necessary. Nevertheless, understanding the Quran is an interest for the Muslims as well as the attention of millions of people from the faiths.  Following the generation, lots of content that related to the Quran has been broadcast by Muslims scholars in the way of the tafsirs, translation and the book of hadiths. Problem has happened at current is most Muslim in Malaysia do not understand sentences in the Quran due to language barrier. The purpose of this research is classified topic in each verses of the Quran sentence based on its specific theme. It involves the objective of text mining which are based on linguistic information and domain. The usage of corpus helps to perform various data mining tasks including information extraction, text categorization, the relationship of concepts, association discovery, the evaluation of pattern and assessed. This research project is aiming to create computing environment that enable us use to text mining the Quran. The classification experiment is using the Support Vector Machine to find themes in Juz’ Baqarah. The SVM performance is then compared against other classification algorithms such as Naive Bayes, J48 Decision Tree and K-Nearest Neighbours. This research project aims at creating an enabling computational environment for text mining the Qur’an and to facilitate users to understand every verse in Juz’ Baqarah.
Volume: 12
Issue: 1
Page: 406-411
Publish at: 2018-10-01

Simulation of Single Phase 3-level Z-source NPC Inverter with PV System

10.12928/telkomnika.v16i5.7098
R.; SRM University Palanisamy , K.; SRM University Selvakumar , D.; SRM University Selvabharathi , D.; SRM University Karthikeyan , Udayan; SRM University Nayak , Sahil; SRM University Walia , Pratik; SRM University Chawda
This paper elucidates simulation of single phase 3-level z-source neutral point clamped (NPC) inverter with PV system. single phase NPC inverter employed due to its advantages like less voltage stress, reduced harmonic content, minimsed CMV and voltage stress is low. Z-source network is engaged to boost input voltage getting from the photovoltaic system, which is manoeuvre in shoot through and non-shoot through conditions. This proposed scheme utilized to enhance the output voltage, minimise THD and the leakage current can be avoided with help of split inductor connected with output of inverter system. sinusiodal pulse width modulation (SPWM) used as control technique for the proposed 3-level z-source NPC inverter. The simulation results of this scheme has been verified using matlab/simulink.
Volume: 16
Issue: 5
Page: 2293-2301
Publish at: 2018-10-01

A New Design of an UWB Circular Fractal Printed Antenna

10.12928/telkomnika.v16i5.9548
Akram El; Hassan 1st University of Settat Hamdouni , Abdelali; Hassan 1st University of Settat Tajmouati , Jamal; Hassan 1st University of Settat Zbitou , Ahmed; Hassan 1st University of Settat Errkik , Larbi El; Hassan 1st University of Settat Abdellaoui , Mohamed; Hassan 1st University of Settat Latrach
A Microstrip Antenna (MSA) has been computed and analysed in this study by using CST of Microwave studio as Electromagnetic solver by generating the coefficient of reflection, the Gain, the density of current and the radiation pattern in the frequency range 3.1-10.6 GHz which commercialised by the Federal communication commission (FCC) as an Ultra-wide band (UWB) frequency range. The substrate used to achieve the proposed structure is the FR4-Epoxy with a thickness of 1.6 mm, a constant dielectric of 4.4 and a loss tangent of 0.025. The radiating patch is a circular shape etched with different sizes to create the fractal geometry. The transmission line has been designed by including a tapered section in the part connected to the radiator. The design of the antenna has been verified by using ADS and CST solvers. The fabrication of the antenna has been performed in order to measure the coefficient of reflection and the radiation pattern.
Volume: 16
Issue: 5
Page: 1931-1938
Publish at: 2018-10-01

Design of Flood Warning System Based IoT and Water Characteristics

10.12928/telkomnika.v16i5.7636
Herman; State Polytechnic of Banyuwangi Yuliandoko , Subono; State Polytechnic of Banyuwangi Subono , Vivien Arief; State Polytechnic of Banyuwangi Wardhani , Sholeh Hadi; State Polytechnic of Banyuwangi Pramono , Ponco; State Polytechnic of Banyuwangi Suwindarto
Indonesia is one of the tropical country with high rainfall. It causes a flood disaster that with the loss of property and life. Currently handling flood disasters in developing countries are still using many conventional ways. By using conventional way the flood early warning system is still not able to reach the wider community so that information too late of impending disaster received by the public. Besides that the speed of information is needed in the handling of disasters. Therefore a rapid flood warning system that can reach a wide area such as the internet is necessary to minimize the effects of disasters. IoT (Internet of Thing) is smart technology which has capability to send data in real time, connected to the smart phone, sensor and web service. This ability can be used for smart application to control and manage an early warning system. In this research we also use IoT technology to monitor and control the early detection system of flood disaster. By using IoT technology, sensor data can be sent in real time from sensor to smartphone through internet network. The sensor data contains the water characteristics data on the dam that will be processed in the data base. The processing data of water characteristic will be a decision of hazard level. That decision will be sent to users as notification into the user smartphone application. This research will be useful for deeply research on disaster management system and flood early detection system in Indonesia.
Volume: 16
Issue: 5
Page: 2101-2110
Publish at: 2018-10-01
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